EP 2847624 B1 20180321 - METHOD AND APPARATUS FOR ESTIMATING THE SHAPE OF AN ACOUSTIC TOWED ANTENNA
Title (en)
METHOD AND APPARATUS FOR ESTIMATING THE SHAPE OF AN ACOUSTIC TOWED ANTENNA
Title (de)
VERFAHREN UND VORRICHTUNG ZUM SCHÄTZEN DER FORM EINER AKUSTISCHEN SCHLEPPANTENNE
Title (fr)
PROCÉDÉ ET DISPOSITIF D'ESTIMATION DE LA FORME D'UNE ANTENNE REMORQUÉE ACOUSTIQUE
Publication
Application
Priority
- DE 102012009224 A 20120507
- EP 2013057577 W 20130411
Abstract (en)
[origin: WO2013167336A2] The invention relates to a method and an apparatus for estimating the shape of an acoustic trailing antenna (12), wherein the shape is estimated using Kalman filtering. First of all, this involves the deterministic component (u(ki)) of the state equation of the Kalman filter being set to zero. In addition, successive discrete times (ki) are predefined and, at the predefined times (ki), a respective estimated shape for the trailing antenna (12) is described by a model-based state vector (x)(ki). In this case, the model-based state vectors (x)(ki) are ascertained by the estimated timing response of a mechanical model (24) of the trailing antenna (12) and by movements in a traction point (16) for the trailing antenna (12) that are assumed to be known. The discrepancy in the respective current model-based state vector (x)(ki) is determined for one or more preceding model-based state vectors (x)(ki-1), is considered as a current matrix (F)(ki), and the current transition matrix (F)(ki) is periodically updated for the Kalman filtering with the ascertained matrices (F)(ki).
IPC 8 full level
G01V 1/38 (2006.01)
CPC (source: EP IL US)
B63G 8/39 (2013.01 - EP IL US); G01S 3/801 (2013.01 - EP IL US); G01V 1/3835 (2013.01 - EP IL US); G06F 17/18 (2013.01 - IL US); G06F 30/00 (2020.01 - IL US); H01Q 1/30 (2013.01 - EP IL US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102012009224 A1 20131107; DE 102012009224 B4 20140123; AU 2013258332 A1 20141009; AU 2013258332 B2 20160128; BR 112014025200 A2 20170620; BR 112014025200 B1 20211103; EP 2847624 A2 20150318; EP 2847624 B1 20180321; IL 234952 A0 20141231; IL 234952 B 20200831; SG 11201406190U A 20141127; US 2015134309 A1 20150514; WO 2013167336 A2 20131114; WO 2013167336 A3 20140807
DOCDB simple family (application)
DE 102012009224 A 20120507; AU 2013258332 A 20130411; BR 112014025200 A 20130411; EP 13717753 A 20130411; EP 2013057577 W 20130411; IL 23495214 A 20141002; SG 11201406190U A 20130411; US 201314397772 A 20130411